CN108484051A - A method of it is prepared with phosphate ore flotation tailings non-burning brick - Google Patents
A method of it is prepared with phosphate ore flotation tailings non-burning brick Download PDFInfo
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- CN108484051A CN108484051A CN201810476057.7A CN201810476057A CN108484051A CN 108484051 A CN108484051 A CN 108484051A CN 201810476057 A CN201810476057 A CN 201810476057A CN 108484051 A CN108484051 A CN 108484051A
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- Prior art keywords
- burning brick
- tailing
- brick
- cement
- burning
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The present invention provides a kind of bake-free brick formulas and preparation method thereof, belong to environment-friendly building materials field, its key component is tailing 50%~65%, sand 15%~30%, cement 8%~15%, quick lime 1%~3%, exciting agent 0.1%~0.2%, curing agent 0.1~0.2%, the tailing are phosphate reverse flotation de-magging tailing.Using bake-free brick formula provided by the invention and preparation method thereof, the brick for reaching the non-burning brick standard of MU15 countries can be prepared.The present invention is the non-burning brick preparation method of a kind of mine using the phosphorus tail of high-carbon phosphate content, technique is extrusion forming, natural curing, its simple for process cuts does not cause secondary pollution, not only the non-burning brick of output has economic value, more importantly phosphorus Mine Tailings Utilization has reached 50% or more, the safe and environment-friendly pressure for alleviating Tailings Disposal solves a bottleneck in limitation industry development.
Description
Technical field
The present invention relates to environment-friendly building materials fields, specifically, being a kind of to prepare non-burning brick match using phosphate ore flotation tailings
Side and method.
Background technology
The waste generated during the tangible flotation of phosphate rock of tailing, due to carbonate containing height, it is difficult to be used for building materials, chemical method
Do not have economic benefit using current technology, and easily cause secondary pollution, therefore phosphorus tailing cannot be effectively treated for a long time.
Stockpiling does not only take up tract, loss is wherein a large amount of to tailings stack after phosphorus tailing is emitted into Tailings Dam or dehydration mostly
Useful composition also causes serious influence to the ecological environment of surrounding：Most of tailing is all phosphorite after inorganic acid acidolysis
By-product, and when chemical transport occurs for certain transportable elements in tailing, can also cause serious dirt to air and water and soil
Dye.Currently, contaminated area is up to million mu caused by tailing in China, therefore, carry out the comprehensive utilizating research of phosphorite tailings, to phosphorus
Mine Mineral Processing Industry and ever-expanding flotation of phosphate rock production scale reduce investment, ensure Mine Safety in Production, protect mining tailing wasteland
Ecological environment is of great immediate significance.
It, should in terms of the technical research of phosphate ore flotation tailings comprehensive utilization at present is concentrated mainly on chemical recovering method associated resources
Technical solution because it is of high cost, easily cause secondary pollution, therefore promotion effect is undesirable.Exempt from using phosphate ore flotation tailings preparation
In terms of baking bricks, since phosphate reverse flotation de-magging tailing is compared with other such as flyash, gangue, metal tailings, clinker tailings
Carbonate content is significantly higher, and silicate content is very low, gives making the non-burning brick exceptional hardship brought（It is mainly manifested in intensity not
High, easy to crack, easy decortication etc.）, in addition fineness is thinner, and it is more preferably additional that this causes phosphate ore flotation tailings to make non-burning brick needs
Agent, material proportion and technology requirement.This, which allows for technology, does not have key breakthrough, and the present invention is by a variety of exciting agents of addition and admittedly
Agent overcomes these defects, reaches 50% or more in tailing adding proportion, can still prepare and reach the unburned of MU15 standards
Brick is finally realized and is efficiently used.
Invention content
Non-burning brick method is prepared using phosphate ore flotation tailings the present invention provides a kind of, it is intended to improve phosphate ore processing process
The comprehensive utilization ratio of middle solid waste reduces the influence to environment.
The technical solution adopted in the present invention is：
A method of it is prepared non-burning brick, comprised the steps of with phosphate ore flotation tailings：
（1）Exciting agent and quick lime pretreatment is added to tailing；
（2）To step（1）Material in addition cement and curing agent stir evenly；
（3）To step（2）Material in be added sand stir to get uniform muddy mixture；
（4）By step（3）Mixed material be packed into standard module through pressure or vibration moulding；
（5）By step（4）Product place 24 hours after demould, maintenance at least surrounding obtain it is non-burning brick.
The technical solution adopted in the present invention further includes：
A method of it prepares non-burning brick, comprises the steps of using phosphate ore flotation tailings and another kind waste residue X as raw material：
1）Exciting agent and quick lime pretreatment are added into tailing another kind waste residue；
2）To step 1）Material in addition cement and curing agent stir evenly；
3）To step 2）Material in be added sand stir to get uniform muddy mixture；
4）By step 3）Mixed material be packed into standard module through pressure or vibration moulding；
5）By step 4）Product place 24 hours after demould, maintenance at least surrounding obtain it is non-burning brick.
Further, a method of prepared non-burning brick, mainly organized as tailing, sand, water with phosphate ore flotation tailings
Mud, quick lime, exciting agent and curing agent, by weight percentage, tailing 50%~65%, sand 15%~30%, cement
8%~15%, quick lime 1%~3%, exciting agent 0.1%~0.2%, curing agent 0.1~0.2%.
Further, the step 1）Middle tailing is the tailing of phosphate reverse flotation decarburization hydrochlorate, and essential mineral group becomes white
Marble, collophane, quartz, feldspar etc., wherein dolomite account for 70-80%, and collophane accounts for 7-11%, quartzy 3-5%, remaining is quartz
And feldspar；The tailing fineness is that -0.074mm accounts for 80%, and -0.038mm accounts for 50%.
Further, the step 1）Middle tailing is the tailing of phosphate reverse flotation decarburization hydrochlorate, and primary chemical group becomes：
P2O5Content 5-8%, content of MgO 15-18%, SiO2Content 6-9%.
Further, the step 1）Described in exciting agent be iron chloride, sodium carbonate, sodium sulphate, sodium hydroxide, ammonium acetate
One or more of sulfosalt.
Further, the step 2）Described in cement be plain edition portland cement or composite silica acid salt cement, mark
Numbers 42.5.
Further, the step 2）Described in curing agent be aluminum sulfate, ferric sulfate, sodium phosphate, in waterglass, lignin
Sulfoacid calcium, the one or more of sodium lignin sulfonate.
Further, the step 3）Described in sand grain size be 1-2mm.
Further, the step 4）Maintenance is water seasoning, and daily one, to twice, waters to non-burning brick surface to unburned
It soaks completely on brick surface.
Further, what prepared by the present invention is non-burning brick for solid brick.It is non-burning brick by adding exciting agent and curing agent improvement
Performance improves early powerful and final strength, and overcomes the disadvantage that carbonate mineral content is high in tailing.Finally prepare
Indices are up to standard, meet the unburned brick product of MU15 standards, and complete industrial test.
The beneficial effects of the invention are as follows：It is provided by the invention it is non-burning brick and preparation method thereof phosphate ore flotation tailings are utilized,
Solid waste is recycled.
The present invention prepare it is non-burning brick reach MU15 standards, can be used for construction material.
Specific implementation mode
It is further illustrated the present invention with reference to embodiment, but the scope of protection of present invention is not limited to implement
The range of example statement.
Embodiment 1
The present embodiment provides a kind of unburned solid bricks, contain following component：Tailing 56.15%, sand 27%, cement 15% are raw
Lime 1.5%, exciting agent 0.15%, curing agent 0.2%.
The exciting agent is made of sodium hydroxide and iron chloride, by weight percentage sodium hydroxide 80%, iron chloride
20%.
The curing agent is aluminum sulfate.
It is manufactured in this way that this is non-burning brick：
Exciting agent and quick lime pretreatment is added to tailing, then adds cement and curing agent stirs evenly；
Sand is added into the material stirred and continues to stir to get muddy mixture；
Mixed material is packed into standard module through vibration moulding；
It is demoulded after product with mold is placed 24 hours, maintenance at least surrounding obtains non-burning brick.
After testing, the non-burning brick compression strength 18.75MPa, flexural strength 4.5MPa drying shrinkages 0.030%, freeze proof matter
Amount loss 3.0%, loss of strength 15%, reach non-burning brick MU15 standards.
Embodiment 2
The present embodiment provides a kind of unburned solid bricks, contain following component：Tailing 59%, sand 27%, cement 12%, quick lime
1.75%, exciting agent 0.10%%, curing agent 0.15%.
The exciting agent is made of sodium hydroxide and ammonium acetate sulfosalt, by weight percentage sodium hydroxide 85%, acetic acid
Amine sulfosalt 15%.
The curing agent is sodium lignin sulfonate.
It is manufactured in this way that this is non-burning brick：
Exciting agent and quick lime pretreatment is added to tailing, then adds cement and curing agent stirs evenly；
Sand is added into the material stirred and continues to stir to get muddy mixture；
Mixed material is packed into standard module through vibration moulding；
It is demoulded after product with mold is placed 24 hours, maintenance at least surrounding obtains non-burning brick.
After testing, the non-burning brick compression strength 16.3MPa, flexural strength 3.6MPa drying shrinkages 0.038%, freeze proof matter
Amount loss 3.6%, loss of strength 18%, reach non-burning brick MU15 standards.
Embodiment 3
The present embodiment provides a kind of unburned solid bricks, contain following component：Tailing 40%, waste residue account for 15%, sand 30%, cement
12%, quick lime 2.6%, exciting agent 0.15%, curing agent 0.20%.
The exciting agent is made of sodium hydroxide and iron chloride, by weight percentage sodium hydroxide 88%, iron chloride
12%.
The curing agent is the mixture of aluminum sulfate and sodium lignin sulfonate, by weight percentage aluminum sulfate 60%, wood
Quality sodium sulfonate 40%.
It is manufactured in this way that this is non-burning brick：
Exciting agent and quick lime pretreatment is added to tailing, then adds cement and curing agent stirs evenly；
Sand is added into the material stirred and continues to stir to get muddy mixture；
Mixed material is packed into standard module through vibration moulding；
It is demoulded after product with mold is placed 24 hours, maintenance at least surrounding obtains non-burning brick
After testing, the non-burning brick compression strength 15.4MPa, flexural strength 3.5MPa drying shrinkages 0.034%, freeze proof quality damage
3.1%, loss of strength 19% is lost, non-burning brick MU15 standards are reached.
Claims (9)
1. a kind of preparing non-burning brick method with phosphate ore flotation tailings, which is characterized in that main group as tailing, sand, cement,
Quick lime, exciting agent and curing agent, by weight percentage, tailing 50%~65%, sand 15%~30%, cement 8%
~15%, quick lime 1%~3%, exciting agent 0.1%~0.2%, curing agent 0.1~0.2%.
2. according to claim 1 non-burning brick, which is characterized in that the tailing is the tail of phosphate reverse flotation decarburization hydrochlorate
Mine, essential mineral composition includes dolomite, collophane, quartz, feldspar, and wherein dolomite accounts for 70-80%, and collophane accounts for 7-11%,
Quartzy 3-5%, remaining is quartz and feldspar；The tailing fineness is that -0.074mm accounts for 80%, and -0.038mm accounts for 50%.
3. according to claim 1 non-burning brick, which is characterized in that the tailing is the tail of phosphate reverse flotation decarburization hydrochlorate
Mine, primary chemical composition include：P2O5Content 5-8%, content of MgO 15-18%, SiO2Content 6-9%.
4. according to claim 1 non-burning brick, which is characterized in that the cement is plain edition portland cement or compound
Portland cement, label 42.5, sand grain size 1-2mm.
5. according to claim 1 non-burning brick, which is characterized in that the exciting agent includes iron chloride, sodium carbonate, sulfuric acid
One or more of sodium, sodium hydroxide, ammonium acetate sulfosalt are combined.
6. according to claim 1 non-burning brick, which is characterized in that the curing agent includes aluminum sulfate, ferric sulfate, phosphoric acid
One or more of sodium, waterglass, calcium lignosulfonate, sodium lignin sulfonate are combined.
7. non-burning brick according to claim 1-5 any one, which is characterized in that described non-burning brick for solid brick.
8. the non-burning brick preparation method described in claim 1-5 any one, which is characterized in that include the following steps：
1）Exciting agent and quick lime pretreatment is added to tailing；
2）To step 1）Material in addition cement and curing agent stir evenly；
3）To step 2）Material in be added sand stir to get uniform muddy mixture；
4）By step 3）Mixed material be packed into standard module through pressure or vibration moulding；
5）By step 4）Product place 24 hours after demould, maintenance at least surrounding obtain it is non-burning brick.
9. non-burning brick preparation method according to claim 7, which is characterized in that it is described maintenance be water seasoning, daily one
To twice, waters to non-burning brick surface to non-burning brick surface and soak completely.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810476057.7A CN108484051A (en) | 2018-05-17 | 2018-05-17 | A method of it is prepared with phosphate ore flotation tailings non-burning brick |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810476057.7A CN108484051A (en) | 2018-05-17 | 2018-05-17 | A method of it is prepared with phosphate ore flotation tailings non-burning brick |
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| CN108484051A true CN108484051A (en) | 2018-09-04 |
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| CN201810476057.7A Pending CN108484051A (en) | 2018-05-17 | 2018-05-17 | A method of it is prepared with phosphate ore flotation tailings non-burning brick |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110482920A (en) * | 2019-09-04 | 2019-11-22 | 昆明川金诺化工股份有限公司 | A kind of method flotation phosphate tailing purification and prepare concrete segment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101747007A (en) * | 2009-12-24 | 2010-06-23 | 刘兆 | Baking-free brick made from renewable material of building waste |
| CN101767972A (en) * | 2010-01-18 | 2010-07-07 | 武汉理工大学 | Mine tailing sand brick and preparation method thereof |
| CN103626471A (en) * | 2013-11-26 | 2014-03-12 | 武汉工程大学 | Steam-cured brick produced by use of phosphate tailing and phosphorus slag and preparation method thereof |
| CN105884316A (en) * | 2016-04-19 | 2016-08-24 | 北京建筑材料科学研究总院有限公司 | Baking-free brick prepared from iron tailings and preparation method of baking-free brick |
-
2018
- 2018-05-17 CN CN201810476057.7A patent/CN108484051A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101747007A (en) * | 2009-12-24 | 2010-06-23 | 刘兆 | Baking-free brick made from renewable material of building waste |
| CN101767972A (en) * | 2010-01-18 | 2010-07-07 | 武汉理工大学 | Mine tailing sand brick and preparation method thereof |
| CN103626471A (en) * | 2013-11-26 | 2014-03-12 | 武汉工程大学 | Steam-cured brick produced by use of phosphate tailing and phosphorus slag and preparation method thereof |
| CN105884316A (en) * | 2016-04-19 | 2016-08-24 | 北京建筑材料科学研究总院有限公司 | Baking-free brick prepared from iron tailings and preparation method of baking-free brick |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110482920A (en) * | 2019-09-04 | 2019-11-22 | 昆明川金诺化工股份有限公司 | A kind of method flotation phosphate tailing purification and prepare concrete segment |
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